osmith/wireshark
1
0
Fork 0
forked from osmocom/wireshark
Code Pull requests Releases Wiki Activity
wireshark/print.c
Ulf Lamping c3187174bf replace *a lot* of file related calls by their GLib counterparts. This is necessary for the switch to GTK 2.6 (at least on WIN32). 
to do this, I've added file_util.h to wiretap (would file_compat.h be a better name?), and provide compat_macros like eth_open() instead of open(). While at it, move other file related things there, like #include <io.h>, definition of O_BINARY and alike, so it's all in one place.

deleted related things from config.h.win32

As of these massive changes, I'm almost certain that this will break the Unix build. I'll keep an eye on the buildbot so hopefully everything is working again soon.

svn path=/trunk/; revision=16403
2005-11-06 22:43:25 +00:00

1122 lines
27 KiB
C
Raw Blame History

/* print.c
* Routines for printing packet analysis trees.
*
* $Id$
*
* Gilbert Ramirez <gram@alumni.rice.edu>
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <string.h>
#include <epan/epan.h>
#include <epan/epan_dissect.h>
#include <epan/tvbuff.h>
#include <epan/packet.h>
#include "packet-range.h"
#include "print.h"
#include "ps.h"
#include "file_util.h"
#include <epan/charsets.h>
#include <epan/dissectors/packet-data.h>
#include <epan/dissectors/packet-frame.h>
#define PDML_VERSION "0"
#define PSML_VERSION "0"
typedef struct {
int level;
print_stream_t *stream;
gboolean success;
GSList *src_list;
print_dissections_e print_dissections;
gboolean print_hex_for_data;
char_enc encoding;
epan_dissect_t *edt;
} print_data;
typedef struct {
int level;
FILE *fh;
GSList *src_list;
epan_dissect_t *edt;
} write_pdml_data;
static void proto_tree_print_node(proto_node *node, gpointer data);
static void proto_tree_write_node_pdml(proto_node *node, gpointer data);
static const guint8 *get_field_data(GSList *src_list, field_info *fi);
static void write_pdml_field_hex_value(write_pdml_data *pdata, field_info *fi);
static gboolean print_hex_data_buffer(print_stream_t *stream, const guchar *cp,
guint length, char_enc encoding);
static void ps_clean_string(unsigned char *out, const unsigned char *in,
int outbuf_size);
static void print_escaped_xml(FILE *fh, const char *unescaped_string);
static void print_pdml_geninfo(proto_tree *tree, FILE *fh);
static FILE *
open_print_dest(int to_file, const char *dest)
{
FILE *fh;
/* Open the file or command for output */
if (to_file)
fh = eth_fopen(dest, "w");
else
fh = popen(dest, "w");
return fh;
}
static gboolean
close_print_dest(int to_file, FILE *fh)
{
/* Close the file or command */
if (to_file)
return (fclose(fh) == 0);
else
return (pclose(fh) == 0);
}
#define MAX_PS_LINE_LENGTH 256
gboolean
proto_tree_print(print_args_t *print_args, epan_dissect_t *edt,
print_stream_t *stream)
{
print_data data;
/* Create the output */
data.level = 0;
data.stream = stream;
data.success = TRUE;
data.src_list = edt->pi.data_src;
data.encoding = edt->pi.fd->flags.encoding;
data.print_dissections = print_args->print_dissections;
/* If we're printing the entire packet in hex, don't
print uninterpreted data fields in hex as well. */
data.print_hex_for_data = !print_args->print_hex;
data.edt = edt;
proto_tree_children_foreach(edt->tree, proto_tree_print_node, &data);
return data.success;
}
#define MAX_INDENT 160
/* Print a tree's data, and any child nodes. */
static
void proto_tree_print_node(proto_node *node, gpointer data)
{
field_info *fi = PITEM_FINFO(node);
print_data *pdata = (print_data*) data;
const guint8 *pd;
gchar label_str[ITEM_LABEL_LENGTH];
gchar *label_ptr;
/* Don't print invisible entries. */
if (PROTO_ITEM_IS_HIDDEN(node))
return;
/* Give up if we've already gotten an error. */
if (!pdata->success)
return;
/* was a free format label produced? */
if (fi->rep) {
label_ptr = fi->rep->representation;
}
else { /* no, make a generic label */
label_ptr = label_str;
proto_item_fill_label(fi, label_str);
}
if (!print_line(pdata->stream, pdata->level, label_ptr)) {
pdata->success = FALSE;
return;
}
/* If it's uninterpreted data, dump it (unless our caller will
be printing the entire packet in hex). */
if (fi->hfinfo->id == proto_data && pdata->print_hex_for_data) {
/*
* Find the data for this field.
*/
pd = get_field_data(pdata->src_list, fi);
if (pd) {
if (!print_hex_data_buffer(pdata->stream, pd,
fi->length, pdata->encoding)) {
pdata->success = FALSE;
return;
}
}
}
/* If we're printing all levels, or if this node is one with a
subtree and its subtree is expanded, recurse into the subtree,
if it exists. */
g_assert(fi->tree_type >= -1 && fi->tree_type < num_tree_types);
if (pdata->print_dissections == print_dissections_expanded ||
(pdata->print_dissections == print_dissections_as_displayed &&
fi->tree_type >= 0 && tree_is_expanded[fi->tree_type])) {
if (node->first_child != NULL) {
pdata->level++;
proto_tree_children_foreach(node,
proto_tree_print_node, pdata);
pdata->level--;
if (!pdata->success)
return;
}
}
}
void
write_pdml_preamble(FILE *fh)
{
fputs("<?xml version=\"1.0\"?>\n", fh);
fputs("<pdml version=\"" PDML_VERSION "\" ", fh);
fprintf(fh, "creator=\"%s/%s\">\n", PACKAGE, VERSION);
}
void
proto_tree_write_pdml(epan_dissect_t *edt, FILE *fh)
{
write_pdml_data data;
/* Create the output */
data.level = 0;
data.fh = fh;
data.src_list = edt->pi.data_src;
data.edt = edt;
fprintf(fh, "<packet>\n");
/* Print a "geninfo" protocol as required by PDML */
print_pdml_geninfo(edt->tree, fh);
proto_tree_children_foreach(edt->tree, proto_tree_write_node_pdml,
&data);
fprintf(fh, "</packet>\n\n");
}
/* Write out a tree's data, and any child nodes, as PDML */
static void
proto_tree_write_node_pdml(proto_node *node, gpointer data)
{
field_info *fi = PITEM_FINFO(node);
write_pdml_data *pdata = (write_pdml_data*) data;
const gchar *label_ptr;
gchar label_str[ITEM_LABEL_LENGTH];
char *dfilter_string;
int chop_len;
int i;
for (i = -1; i < pdata->level; i++) {
fputs(" ", pdata->fh);
}
/* Text label. It's printed as a field with no name. */
if (fi->hfinfo->id == hf_text_only) {
/* Get the text */
if (fi->rep) {
label_ptr = fi->rep->representation;
}
else {
label_ptr = "";
}
fputs("<field show=\"", pdata->fh);
print_escaped_xml(pdata->fh, label_ptr);
fprintf(pdata->fh, "\" size=\"%d", fi->length);
fprintf(pdata->fh, "\" pos=\"%d", fi->start);
fputs("\" value=\"", pdata->fh);
write_pdml_field_hex_value(pdata, fi);
if (node->first_child != NULL) {
fputs("\">\n", pdata->fh);
}
else {
fputs("\"/>\n", pdata->fh);
}
}
/* Uninterpreted data, i.e., the "Data" protocol, is
* printed as a field instead of a protocol. */
else if (fi->hfinfo->id == proto_data) {
fputs("<field name=\"data\" value=\"", pdata->fh);
write_pdml_field_hex_value(pdata, fi);
fputs("\"/>\n", pdata->fh);
}
/* Normal protocols and fields */
else {
if (fi->hfinfo->type == FT_PROTOCOL) {
fputs("<proto name=\"", pdata->fh);
}
else {
fputs("<field name=\"", pdata->fh);
}
print_escaped_xml(pdata->fh, fi->hfinfo->abbrev);
#if 0
/* PDML spec, see:
* http://analyzer.polito.it/30alpha/docs/dissectors/PDMLSpec.htm
*
* the show fields contains things in 'human readable' format
* showname: contains only the name of the field
* show: contains only the data of the field
* showdtl: contains additional details of the field data
* showmap: contains mappings of the field data (e.g. the hostname to an IP address)
*
* XXX - the showname shouldn't contain the field data itself
* (like it's contained in the fi->rep->representation).
* Unfortunately, we don't have the field data representation for
* all fields, so this isn't currently possible */
fputs("\" showname=\"", pdata->fh);
print_escaped_xml(pdata->fh, fi->hfinfo->name);
#endif
if (fi->rep) {
fputs("\" showname=\"", pdata->fh);
print_escaped_xml(pdata->fh, fi->rep->representation);
}
else {
label_ptr = label_str;
proto_item_fill_label(fi, label_str);
fputs("\" showname=\"", pdata->fh);
print_escaped_xml(pdata->fh, label_ptr);
}
if (PROTO_ITEM_IS_HIDDEN(node))
fprintf(pdata->fh, "\" hide=\"yes");
fprintf(pdata->fh, "\" size=\"%d", fi->length);
fprintf(pdata->fh, "\" pos=\"%d", fi->start);
/* fprintf(pdata->fh, "\" id=\"%d", fi->hfinfo->id);*/
if (fi->hfinfo->type != FT_PROTOCOL) {
/* Field */
/* XXX - this is a hack until we can just call
* fvalue_to_string_repr() for *all* FT_* types. */
dfilter_string = proto_construct_dfilter_string(fi,
pdata->edt);
if (dfilter_string != NULL) {
chop_len = strlen(fi->hfinfo->abbrev) + 4; /* for " == " */
/* XXX - Remove double-quotes. Again, once we
* can call fvalue_to_string_repr(), we can
* ask it not to produce the version for
* display-filters, and thus, no
* double-quotes. */
if (dfilter_string[strlen(dfilter_string)-1] == '"') {
dfilter_string[strlen(dfilter_string)-1] = '\0';
chop_len++;
}
fputs("\" show=\"", pdata->fh);
print_escaped_xml(pdata->fh, &dfilter_string[chop_len]);
}
if (fi->length > 0) {
fputs("\" value=\"", pdata->fh);
if (fi->hfinfo->bitmask!=0) {
fprintf(pdata->fh, "%X", fvalue_get_integer(&fi->value));
fputs("\" unmaskedvalue=\"", pdata->fh);
write_pdml_field_hex_value(pdata, fi);
}
else {
write_pdml_field_hex_value(pdata, fi);
}
}
}
if (node->first_child != NULL) {
fputs("\">\n", pdata->fh);
}
else if (fi->hfinfo->id == proto_data) {
fputs("\">\n", pdata->fh);
}
else {
fputs("\"/>\n", pdata->fh);
}
}
/* We always print all levels for PDML. Recurse here. */
if (node->first_child != NULL) {
pdata->level++;
proto_tree_children_foreach(node,
proto_tree_write_node_pdml, pdata);
pdata->level--;
}
if (node->first_child != NULL) {
for (i = -1; i < pdata->level; i++) {
fputs(" ", pdata->fh);
}
if (fi->hfinfo->type == FT_PROTOCOL) {
fputs("</proto>\n", pdata->fh);
}
else {
fputs("</field>\n", pdata->fh);
}
}
}
/* Print info for a 'geninfo' pseudo-protocol. This is required by
* the PDML spec. The information is contained in Ethereal's 'frame' protocol,
* but we produce a 'geninfo' protocol in the PDML to conform to spec.
* The 'frame' protocol follows the 'geninfo' protocol in the PDML. */
static void
print_pdml_geninfo(proto_tree *tree, FILE *fh)
{
guint32 num, len, caplen;
nstime_t *timestamp;
GPtrArray *finfo_array;
field_info *frame_finfo;
/* Get frame protocol's finfo. */
finfo_array = proto_find_finfo(tree, proto_frame);
if (g_ptr_array_len(finfo_array) < 1) {
return;
}
frame_finfo = finfo_array->pdata[0];
g_ptr_array_free(finfo_array, FALSE);
/* frame.number --> geninfo.num */
finfo_array = proto_find_finfo(tree, hf_frame_number);
if (g_ptr_array_len(finfo_array) < 1) {
return;
}
num = fvalue_get_integer(&((field_info*)finfo_array->pdata[0])->value);
g_ptr_array_free(finfo_array, FALSE);
/* frame.pkt_len --> geninfo.len */
finfo_array = proto_find_finfo(tree, hf_frame_packet_len);
if (g_ptr_array_len(finfo_array) < 1) {
return;
}
len = fvalue_get_integer(&((field_info*)finfo_array->pdata[0])->value);
g_ptr_array_free(finfo_array, FALSE);
/* frame.cap_len --> geninfo.caplen */
finfo_array = proto_find_finfo(tree, hf_frame_capture_len);
if (g_ptr_array_len(finfo_array) < 1) {
return;
}
caplen = fvalue_get_integer(&((field_info*)finfo_array->pdata[0])->value);
g_ptr_array_free(finfo_array, FALSE);
/* frame.time --> geninfo.timestamp */
finfo_array = proto_find_finfo(tree, hf_frame_arrival_time);
if (g_ptr_array_len(finfo_array) < 1) {
return;
}
timestamp = fvalue_get(&((field_info*)finfo_array->pdata[0])->value);
g_ptr_array_free(finfo_array, FALSE);
/* Print geninfo start */
fprintf(fh,
" <proto name=\"geninfo\" pos=\"0\" showname=\"General information\" size=\"%u\">\n",
frame_finfo->length);
/* Print geninfo.num */
fprintf(fh,
" <field name=\"num\" pos=\"0\" show=\"%u\" showname=\"Number\" value=\"%x\" size=\"%u\"/>\n",
num, num, frame_finfo->length);
/* Print geninfo.len */
fprintf(fh,
" <field name=\"len\" pos=\"0\" show=\"%u\" showname=\"Packet Length\" value=\"%x\" size=\"%u\"/>\n",
len, len, frame_finfo->length);
/* Print geninfo.caplen */
fprintf(fh,
" <field name=\"caplen\" pos=\"0\" show=\"%u\" showname=\"Captured Length\" value=\"%x\" size=\"%u\"/>\n",
caplen, caplen, frame_finfo->length);
/* Print geninfo.timestamp */
fprintf(fh,
" <field name=\"timestamp\" pos=\"0\" show=\"%s\" showname=\"Captured Time\" value=\"%d.%09d\" size=\"%u\"/>\n",
abs_time_to_str(timestamp), (int) timestamp->secs, timestamp->nsecs, frame_finfo->length);
/* Print geninfo end */
fprintf(fh,
" </proto>\n");
}
void
write_pdml_finale(FILE *fh)
{
fputs("</pdml>\n", fh);
}
void
write_psml_preamble(FILE *fh)
{
fputs("<?xml version=\"1.0\"?>\n", fh);
fputs("<psml version=\"" PSML_VERSION "\" ", fh);
fprintf(fh, "creator=\"%s/%s\">\n", PACKAGE, VERSION);
}
void
proto_tree_write_psml(epan_dissect_t *edt, FILE *fh)
{
gint i;
/* if this is the first packet, we have to create the PSML structure output */
if(edt->pi.fd->num == 1) {
fprintf(fh, "<structure>\n");
for(i=0; i < edt->pi.cinfo->num_cols; i++) {
fprintf(fh, "<section>");
print_escaped_xml(fh, edt->pi.cinfo->col_title[i]);
fprintf(fh, "</section>\n");
}
fprintf(fh, "</structure>\n\n");
}
fprintf(fh, "<packet>\n");
for(i=0; i < edt->pi.cinfo->num_cols; i++) {
fprintf(fh, "<section>");
print_escaped_xml(fh, edt->pi.cinfo->col_data[i]);
fprintf(fh, "</section>\n");
}
fprintf(fh, "</packet>\n\n");
}
void
write_psml_finale(FILE *fh)
{
fputs("</psml>\n", fh);
}
void
write_csv_preamble(FILE *fh _U_)
{
}
void
proto_tree_write_csv(epan_dissect_t *edt, FILE *fh)
{
gint i;
/* if this is the first packet, we have to write the CSV header */
if(edt->pi.fd->num == 1) {
for(i=0; i < edt->pi.cinfo->num_cols - 1; i++)
fprintf(fh, "\"%s\", ", edt->pi.cinfo->col_title[i]);
fprintf(fh, "\"%s\"\n", edt->pi.cinfo->col_title[i]);
}
for(i=0; i < edt->pi.cinfo->num_cols - 1; i++)
fprintf(fh, "\"%s\", ", edt->pi.cinfo->col_data[i]);
fprintf(fh, "\"%s\"\n", edt->pi.cinfo->col_data[i]);
}
void
write_csv_finale(FILE *fh _U_)
{
}
/*
* Find the data source for a specified field, and return a pointer
* to the data in it. Returns NULL if the data is out of bounds.
*/
static const guint8 *
get_field_data(GSList *src_list, field_info *fi)
{
GSList *src_le;
data_source *src;
tvbuff_t *src_tvb;
gint length, tvbuff_length;
for (src_le = src_list; src_le != NULL; src_le = src_le->next) {
src = src_le->data;
src_tvb = src->tvb;
if (fi->ds_tvb == src_tvb) {
/*
* Found it.
*
* XXX - a field can have a length that runs past
* the end of the tvbuff. Ideally, that should
* be fixed when adding an item to the protocol
* tree, but checking the length when doing
* that could be expensive. Until we fix that,
* we'll do the check here.
*/
tvbuff_length = tvb_length_remaining(src_tvb,
fi->start);
if (tvbuff_length < 0) {
return NULL;
}
length = fi->length;
if (length > tvbuff_length)
length = tvbuff_length;
return tvb_get_ptr(src_tvb, fi->start, length);
}
}
g_assert_not_reached();
return NULL; /* not found */
}
/* Print a string, escaping out certain characters that need to
* escaped out for XML. */
static void
print_escaped_xml(FILE *fh, const char *unescaped_string)
{
const unsigned char *p;
for (p = unescaped_string; *p != '\0'; p++) {
switch (*p) {
case '&':
fputs("&amp;", fh);
break;
case '<':
fputs("&lt;", fh);
break;
case '>':
fputs("&gt;", fh);
break;
case '"':
fputs("&quot;", fh);
break;
case '\'':
fputs("&apos;", fh);
break;
default:
fputc(*p, fh);
}
}
}
static void
write_pdml_field_hex_value(write_pdml_data *pdata, field_info *fi)
{
int i;
const guint8 *pd;
if (fi->length > tvb_length_remaining(fi->ds_tvb, fi->start)) {
fprintf(pdata->fh, "field length invalid!");
return;
}
/* Find the data for this field. */
pd = get_field_data(pdata->src_list, fi);
if (pd) {
/* Print a simple hex dump */
for (i = 0 ; i < fi->length; i++) {
fprintf(pdata->fh, "%02x", pd[i]);
}
}
}
gboolean
print_hex_data(print_stream_t *stream, epan_dissect_t *edt)
{
gboolean multiple_sources;
GSList *src_le;
data_source *src;
tvbuff_t *tvb;
char *name;
char *line;
const guchar *cp;
guint length;
/*
* Set "multiple_sources" iff this frame has more than one
* data source; if it does, we need to print the name of
* the data source before printing the data from the
* data source.
*/
multiple_sources = (edt->pi.data_src->next != NULL);
for (src_le = edt->pi.data_src; src_le != NULL;
src_le = src_le->next) {
src = src_le->data;
tvb = src->tvb;
if (multiple_sources) {
name = src->name;
print_line(stream, 0, "");
line = g_malloc(strlen(name) + 2); /* <name>:\0 */
strcpy(line, name);
strcat(line, ":");
print_line(stream, 0, line);
g_free(line);
}
length = tvb_length(tvb);
if (length == 0)
return TRUE;
cp = tvb_get_ptr(tvb, 0, length);
if (!print_hex_data_buffer(stream, cp, length,
edt->pi.fd->flags.encoding))
return FALSE;
}
return TRUE;
}
/*
* This routine is based on a routine created by Dan Lasley
* <DLASLEY@PROMUS.com>.
*
* It was modified for Ethereal by Gilbert Ramirez and others.
*/
#define MAX_OFFSET_LEN 8 /* max length of hex offset of bytes */
#define BYTES_PER_LINE 16 /* max byte values printed on a line */
#define HEX_DUMP_LEN (BYTES_PER_LINE*3)
/* max number of characters hex dump takes -
2 digits plus trailing blank */
#define DATA_DUMP_LEN (HEX_DUMP_LEN + 2 + BYTES_PER_LINE)
/* number of characters those bytes take;
3 characters per byte of hex dump,
2 blanks separating hex from ASCII,
1 character per byte of ASCII dump */
#define MAX_LINE_LEN (MAX_OFFSET_LEN + 2 + DATA_DUMP_LEN)
/* number of characters per line;
offset, 2 blanks separating offset
from data dump, data dump */
static gboolean
print_hex_data_buffer(print_stream_t *stream, const guchar *cp,
guint length, char_enc encoding)
{
register unsigned int ad, i, j, k, l;
guchar c;
guchar line[MAX_LINE_LEN + 1];
unsigned int use_digits;
static guchar binhex[16] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
if (!print_line(stream, 0, ""))
return FALSE;
/*
* How many of the leading digits of the offset will we supply?
* We always supply at least 4 digits, but if the maximum offset
* won't fit in 4 digits, we use as many digits as will be needed.
*/
if (((length - 1) & 0xF0000000) != 0)
use_digits = 8; /* need all 8 digits */
else if (((length - 1) & 0x0F000000) != 0)
use_digits = 7; /* need 7 digits */
else if (((length - 1) & 0x00F00000) != 0)
use_digits = 6; /* need 6 digits */
else if (((length - 1) & 0x000F0000) != 0)
use_digits = 5; /* need 5 digits */
else
use_digits = 4; /* we'll supply 4 digits */
ad = 0;
i = 0;
j = 0;
k = 0;
while (i < length) {
if ((i & 15) == 0) {
/*
* Start of a new line.
*/
j = 0;
k = 0;
l = use_digits;
do {
l--;
c = (ad >> (l*4)) & 0xF;
line[j++] = binhex[c];
} while (l != 0);
line[j++] = ' ';
line[j++] = ' ';
memset(line+j, ' ', DATA_DUMP_LEN);
/*
* Offset in line of ASCII dump.
*/
k = j + HEX_DUMP_LEN + 2;
}
c = *cp++;
line[j++] = binhex[c>>4];
line[j++] = binhex[c&0xf];
j++;
if (encoding == CHAR_EBCDIC) {
c = EBCDIC_to_ASCII1(c);
}
line[k++] = c >= ' ' && c < 0x7f ? c : '.';
i++;
if ((i & 15) == 0 || i == length) {
/*
* We'll be starting a new line, or
* we're finished printing this buffer;
* dump out the line we've constructed,
* and advance the offset.
*/
line[k] = '\0';
if (!print_line(stream, 0, line))
return FALSE;
ad += 16;
}
}
return TRUE;
}
static
void ps_clean_string(unsigned char *out, const unsigned char *in,
int outbuf_size)
{
int rd, wr;
char c;
for (rd = 0, wr = 0 ; wr < outbuf_size; rd++, wr++ ) {
c = in[rd];
switch (c) {
case '(':
case ')':
case '\\':
out[wr] = '\\';
out[++wr] = c;
break;
default:
out[wr] = c;
break;
}
if (c == 0) {
break;
}
}
}
/* Some formats need stuff at the beginning of the output */
gboolean
print_preamble(print_stream_t *self, gchar *filename)
{
return (self->ops->print_preamble)(self, filename);
}
gboolean
print_line(print_stream_t *self, int indent, const char *line)
{
return (self->ops->print_line)(self, indent, line);
}
/* Insert bookmark */
gboolean
print_bookmark(print_stream_t *self, const gchar *name, const gchar *title)
{
return (self->ops->print_bookmark)(self, name, title);
}
gboolean
new_page(print_stream_t *self)
{
return (self->ops->new_page)(self);
}
/* Some formats need stuff at the end of the output */
gboolean
print_finale(print_stream_t *self)
{
return (self->ops->print_finale)(self);
}
gboolean
destroy_print_stream(print_stream_t *self)
{
return (self->ops->destroy)(self);
}
typedef struct {
int to_file;
FILE *fh;
} output_text;
static gboolean
print_preamble_text(print_stream_t *self _U_, gchar *filename _U_)
{
/* do nothing */
return TRUE; /* always succeeds */
}
static gboolean
print_line_text(print_stream_t *self, int indent, const char *line)
{
output_text *output = self->data;
char space[MAX_INDENT+1];
int i;
int num_spaces;
/* Prepare the tabs for printing, depending on tree level */
num_spaces = indent * 4;
if (num_spaces > MAX_INDENT) {
num_spaces = MAX_INDENT;
}
for (i = 0; i < num_spaces; i++) {
space[i] = ' ';
}
/* The string is NUL-terminated */
space[num_spaces] = '\0';
fputs(space, output->fh);
fputs(line, output->fh);
putc('\n', output->fh);
return !ferror(output->fh);
}
static gboolean
print_bookmark_text(print_stream_t *self _U_, const gchar *name _U_,
const gchar *title _U_)
{
/* do nothing */
return TRUE;
}
static gboolean
new_page_text(print_stream_t *self)
{
output_text *output = self->data;
fputs("\f", output->fh);
return !ferror(output->fh);
}
static gboolean
print_finale_text(print_stream_t *self _U_)
{
/* do nothing */
return TRUE; /* always succeeds */
}
static gboolean
destroy_text(print_stream_t *self)
{
output_text *output = self->data;
gboolean ret;
ret = close_print_dest(output->to_file, output->fh);
g_free(output);
g_free(self);
return ret;
}
static const print_stream_ops_t print_text_ops = {
print_preamble_text,
print_line_text,
print_bookmark_text,
new_page_text,
print_finale_text,
destroy_text
};
print_stream_t *
print_stream_text_new(int to_file, const char *dest)
{
FILE *fh;
print_stream_t *stream;
output_text *output;
fh = open_print_dest(to_file, dest);
if (fh == NULL)
return NULL;
output = g_malloc(sizeof *output);
output->to_file = to_file;
output->fh = fh;
stream = g_malloc(sizeof (print_stream_t));
stream->ops = &print_text_ops;
stream->data = output;
return stream;
}
print_stream_t *
print_stream_text_stdio_new(FILE *fh)
{
print_stream_t *stream;
output_text *output;
output = g_malloc(sizeof *output);
output->to_file = TRUE;
output->fh = fh;
stream = g_malloc(sizeof (print_stream_t));
stream->ops = &print_text_ops;
stream->data = output;
return stream;
}
typedef struct {
int to_file;
FILE *fh;
} output_ps;
static gboolean
print_preamble_ps(print_stream_t *self, gchar *filename)
{
output_ps *output = self->data;
char psbuffer[MAX_PS_LINE_LENGTH]; /* static sized buffer! */
print_ps_preamble(output->fh);
fputs("%% Set the font to 10 point\n", output->fh);
fputs("/Courier findfont 10 scalefont setfont\n", output->fh);
fputs("\n", output->fh);
fputs("%% the page title\n", output->fh);
ps_clean_string(psbuffer, filename, MAX_PS_LINE_LENGTH);
fprintf(output->fh, "/eth_pagetitle (%s - Ethereal) def\n", psbuffer);
fputs("\n", output->fh);
return !ferror(output->fh);
}
static gboolean
print_line_ps(print_stream_t *self, int indent, const char *line)
{
output_ps *output = self->data;
char psbuffer[MAX_PS_LINE_LENGTH]; /* static sized buffer! */
ps_clean_string(psbuffer, line, MAX_PS_LINE_LENGTH);
fprintf(output->fh, "%d (%s) putline\n", indent, psbuffer);
return !ferror(output->fh);
}
static gboolean
print_bookmark_ps(print_stream_t *self, const gchar *name, const gchar *title)
{
output_ps *output = self->data;
char psbuffer[MAX_PS_LINE_LENGTH]; /* static sized buffer! */
/*
* See the Adobe "pdfmark reference":
*
* http://partners.adobe.com/asn/acrobat/docs/pdfmark.pdf
*
* The pdfmark stuff tells code that turns PostScript into PDF
* things that it should do.
*
* The /OUT stuff creates a bookmark that goes to the
* destination with "name" as the name and "title" as the title.
*
* The "/DEST" creates the destination.
*/
ps_clean_string(psbuffer, title, MAX_PS_LINE_LENGTH);
fprintf(output->fh, "[/Dest /%s /Title (%s) /OUT pdfmark\n", name,
psbuffer);
fputs("[/View [/XYZ -4 currentpoint matrix currentmatrix matrix defaultmatrix\n",
output->fh);
fputs("matrix invertmatrix matrix concatmatrix transform exch pop 20 add null]\n",
output->fh);
fprintf(output->fh, "/Dest /%s /DEST pdfmark\n", name);
return !ferror(output->fh);
}
static gboolean
new_page_ps(print_stream_t *self)
{
output_ps *output = self->data;
fputs("formfeed\n", output->fh);
return !ferror(output->fh);
}
static gboolean
print_finale_ps(print_stream_t *self)
{
output_ps *output = self->data;
print_ps_finale(output->fh);
return !ferror(output->fh);
}
static gboolean
destroy_ps(print_stream_t *self)
{
output_ps *output = self->data;
gboolean ret;
ret = close_print_dest(output->to_file, output->fh);
g_free(output);
g_free(self);
return ret;
}
static const print_stream_ops_t print_ps_ops = {
print_preamble_ps,
print_line_ps,
print_bookmark_ps,
new_page_ps,
print_finale_ps,
destroy_ps
};
print_stream_t *
print_stream_ps_new(int to_file, const char *dest)
{
FILE *fh;
print_stream_t *stream;
output_ps *output;
fh = open_print_dest(to_file, dest);
if (fh == NULL)
return NULL;
output = g_malloc(sizeof *output);
output->to_file = to_file;
output->fh = fh;
stream = g_malloc(sizeof (print_stream_t));
stream->ops = &print_ps_ops;
stream->data = output;
return stream;
}
print_stream_t *
print_stream_ps_stdio_new(FILE *fh)
{
print_stream_t *stream;
output_ps *output;
output = g_malloc(sizeof *output);
output->to_file = TRUE;
output->fh = fh;
stream = g_malloc(sizeof (print_stream_t));
stream->ops = &print_ps_ops;
stream->data = output;
return stream;
}
View git blame Copy permalink